M3.1 Earthquake 14 km SSE of Esperanza, Puerto Rico — August 26, 2026
2026-08-26 12:28:31 UTC (1 hour ago) · approx. 8:28 AM UTC-4 local
On August 26, 2026 at 12:28 UTC, a magnitude 3.1 shallow crustal earthquake struck 14 km SSE of Esperanza, Puerto Rico, at a depth of 6.2 km and coordinates 17.9688°, -65.4287°.
Physical scale: An earthquake of magnitude 3.1 releases seismic energy equivalent to roughly 674 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 83 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-65.4287°E
Technical Information
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Common Questions
How strong was the magnitude 3.1 earthquake near Esperanza, Puerto Rico?
The magnitude 3.1 earthquake that struck 14 km SSE of Esperanza, Puerto Rico on August 26, 2026 at 12:28 UTC had a depth of 6.2 km. For context, this was a minor earthquake typically detected only by instruments.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.1 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.1 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: pr71529898). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, August 26, 2026). M3.1 Earthquake 14 km SSE of Esperanza, Puerto Rico — August 26, 2026. Retrieved August 26, 2026 from https://www.earthquaketracker.org/earthquakes/event/pr71529898/